Updated: May 06, 2026
Location and Projects
Address
6046 E 143rd Drive, Thornton, CO, 80602
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Fourth Generation Contracting Construction
Fourth Generation Contracting LLC, 6046 E 143rd Dr, Thornton, CO (Owned by: Gary Fiiiian) holds a One And Two Family Residential license and 6 other licenses according to the Boulder County license board.
Their BuildZoom score of 101 ranks in the top 12% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Fourth Generation Contracting LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Fourth Generation Contracting LLC Services
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Fourth Generation Contracting LLC Contact Information
Phone Number: (303) 359-6844
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Address: 6046 E 143rd Drive, Thornton, CO 80602
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Fourth Generation Contracting LLC Thornton
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Fourth Generation Contracting LLC has a BuildZoom score of 101, which places them above 88% of 55,949 contractors in Colorado.
Activity
|
6 projects
|
2025 |
|
3 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Fourth Generation Contracting LLC has worked on at least
10.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
< $5k |
|
2 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
|
4 projects
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $140,000. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Fourth Generation Contracting LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Whole home historic remodel. complete interior remodel new windows doors siding and roof. we are also doing a new foundation for the home. the existing footprint will stay the same. we are currently working with amelia brackett hogstad in planning for the historic portion of the project
Valuation:
$350,000
Permit #:
RES-3600-2024
Status:
final
Fee:
$13,055
Permit Type:
N/A
Building Type:
N/A
We are building a new residential two story single family home and a detached garage with a guest house over top of the garage
Valuation:
$450,000
Permit #:
RES-3802-2024
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition and remodel
Valuation:
$321,800
Permit #:
BP-24-3674
Status:
issued
Fee:
$8,307
Permit Type:
N/A
Building Type:
N/A
New single family detached structure (garage & adu separate permit)
Valuation:
$520,000
Permit #:
RES-3972-2025
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove the existing roof and replace with a new roof to code
Valuation:
$6,300
Permit #:
MISC-10741-2025
Status:
final
Fee:
$318
Permit Type:
N/A
Building Type:
N/A
We are doing a kitchen remodel replacing the cabinets and countertops adding a double oven a drop in cook top and moving the refrigerator to a new location
Valuation:
$32,450
Permit #:
BDP22-1265
Status:
final
Fee:
$677
Permit Type:
Alteration
Building Type:
Residential
Detached garage with adu above
Valuation:
$140,000
Permit #:
RES-3973-2025
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Buildingonline |basement finish approx 500 sf - bedroom full bathroom family room unfinished stortage/mechanical room
Valuation:
$5,530
Permit #:
1780150
Status:
issued
Fee:
$490
Permit Type:
Basement finish p...
Building Type:
N/A
600 sft basement finish with 2 bedrooms and 1 full bathroom
Valuation:
N/A
Permit #:
RALT24-00157
Status:
final
Fee:
$1,507
Permit Type:
Basement finish
Building Type:
N/A
Home remodel w panel upgrade
Valuation:
$75,000
Permit #:
RES22-01413
Status:
final
Fee:
$2,617
Permit Type:
N/A
Building Type:
N/A
1450 sqft basement finish two bedrooms one 3/4 bathroom one 1/2 bathroom
Valuation:
$37,400
Permit #:
BP-21-01494
Status:
final
Fee:
$516
Permit Type:
N/A
Building Type:
N/A
Deconstruct shed (bwop)
Valuation:
$1,000
Permit #:
BP-24-3657
Status:
complete
Fee:
$82
Permit Type:
N/A
Building Type:
N/A
Tf for the marriage and familly clinic
Valuation:
N/A
Permit #:
BLDG20-2774
Status:
issued
Fee:
$2,191
Permit Type:
Building
Building Type:
N/A
Stock 430t elev d
Valuation:
N/A
Permit #:
B201802100
Status:
complete
Fee:
$36,949
Permit Type:
N/A
Building Type:
N/A
700 sq ft basement finish
Valuation:
$21,575
Permit #:
B201801458
Status:
complete
Fee:
$1,411
Permit Type:
N/A
Building Type:
N/A
Remodel bathroom
Valuation:
$41,500
Permit #:
BP-25-02160
Status:
complete
Fee:
$1,569
Permit Type:
N/A
Building Type:
Residential singl...
Basement finish with 1 bedroom and 1 bathroom
Valuation:
N/A
Permit #:
BLDG21-1631
Status:
final
Fee:
$981
Permit Type:
Basement finish
Building Type:
N/A
One bedroom one bathroom with existing egress window
Valuation:
N/A
Permit #:
BLDG19-4159
Status:
issued
Fee:
$801
Permit Type:
Basement finish
Building Type:
N/A
Proposed addition over crawlspace
Valuation:
$300,000
Permit #:
BLDG25-00531
Status:
issued
Fee:
$7,998
Permit Type:
Addition
Building Type:
N/A
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Fourth Generation Contracting LLC Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Fourth Generation Contracting LLC License info
Verified License
| License # | CON-24-0225 |
| Status | Active |
| County | Boulder County |
| Type | One And Two Family Residential |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Fourth Generation Contracting LLC at the Boulder County Land Use Department.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1902515 |
| Status | Active |
| City | Westminster |
| Type | General Contractor |
| Date Issued | 10-22-2025 |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Fourth Generation Contracting LLC at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | LCC2015063252 |
| Status | Active |
| City | Thornton |
| Type | Class C Residential Contractor Expires 2027 01 09 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Fourth Generation Contracting LLC at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC9993 |
| Status | Inactive |
| City | Arvada |
| Type | Contractor |
- According to the The City of Arvada, Colorado, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Fourth Generation Contracting LLC at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 24-000229 |
| Status | Inactive |
| City | Lafayette |
| Type | General Class C |
- According to the City of Lafayette, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Fourth Generation Contracting LLC at the City of Lafayette.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Aurora |
| Type | Residential Building Contractor |
- According to the Aurora, Colorado, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | GCC1935194 |
| Status | Inactive |
| City | Lafayette |
| Type | General Class C |
- According to the City of Lafayette, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Fourth Generation Contracting LLC at the City of Lafayette.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
16
Permits
- Building permit records show that Fourth Generation Contracting LLC has worked on 16 permitted projects.
Fourth Generation Contracting LLC Employees
GF
Gary Fiiiian
Owner
GF
Gary Fillian
Owner